andrea, thanks. >>> overseas today in cairo, a dramatic scene in tahrir square. it looked a lot like those furious protests we saw against former president hosni mubarak, driven out early last year. but today's anger was directed at the new president, morsi. nbc's ayman mohyeldin is in tahrir square for us tonight. good evening, ayman. >> reporter: good evening, brian. hundreds of thousands of protesters were back here in tahrir square angry with president morsi for granting himself new powers. police used tear gas and rubber bullets, killing two protesters and injuring hundreds more. beyond the square, muslim brotherhood offices were attacked. the president is trying to diffuse the crisis, cancelling a rally by supporters. and promising to use his new powers in a limited way. people here don't believe him, in fact, it's only galvanized the opposition, who say president morsi is betraying the revolution becoming another mubarak, they vowed to stay here until morsi rescinds his decree. brian? >> ayman mohyeldin above tahrir square for us tonight, ayman, thanks. >>